Surname Rayain (Rayain 
) , in all the world, is a very rare last name. The last name Rayain is characteristic of Thailand, where it is a very rare surname, Malaysia, and India, where it is an extremely rare surname. Also, Rayain is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rayain | Philippines, South Africa, India, Malaysia, Thailand |